Rivet-setting tool



. (No Model.)

. W. G. BRAY 8v E. A. HBMMENWAY.

RIVBT SETTING TOOL.

11-0. 477,211. Patented June 21, 1892.

ad rneg 1 llll Menu hrs: ivilliargClaxlonBray,

UNITED STATES PATENT OFFICE...

WILLIAM (J. llltAl', 01- NE\V' ON ()EJTRE, AND ED\VA RI) A. llEllljhlEN WAY, ()I" BOSTON, MASSACHUSETTS,'ASSIGNORS TO THE TUBULAR RIVET COMIAN Y- Ol NE\V HAVEN, CONNECTICUT.

RIYET-SETTING TOOL.=

SPECIFICATION forming part of Letters Patent No. 477,241, dated June 21, 1892.

Application filed October 8, 1890. Serial No. 367,379. (llo model.)

To all wit-0m, it mag concern:

-lle it known that we, \VILLIAM CLAXTON BRAY, of Newton Centre, in the county of Middlesex, and EDWARD A. IIEMMENWAY, of Boston, in the county of Suffolk, State of Massachusetts, have jointly invented certain new and useful Improvements inIRivet-Setting Tools, of which the following, taken in connection with the accompanying drawings, is a specification.

Our invention relates to rivct-setting tools; and it consists in certain novel features of construction, arrangement, and combination of parts, which will be readily understoc'l by reference to the description of the drawings audio the claims hereinafter given and in which our invention is clearly'pointed out.

Figure 1 of the drawings is a side elevation of so much of a rivet-setting machine as is necessary to illustrate our invention. Fig. 2 1s a front elevation of the setting-plunger with our improvements applied thereto and showing a small portion of the frame in section. Fig. 3 is a vertical sectional elevation of the same, the cutting-plane being on line 2 2 on Fig. 2. Fig. at is a sectional elevation, -the cutting-plane being on line 3 3 on Fig. 3. Fig. 5 is a transverse section on line 4 4. of Figs. 2, 3, and 4. Fig. 6 is a vertical section, and Fig. 7 an inverted plan, of a portion of the setting-plunger and its accessories in the positions they assume when theiivet is set; and

Fig. 8 represents elevations of three different.

sizes and styles of rivets to be set thereby.

In the drawings, A is the frame of arivetsetting machine, B is the setting plunger mounted in hearings in the front end of the upper portion of said frame, and C is the lever by which a vertical reciprocation is in1- parted to said plunger, allin a well-known -=manner. The plunger B has set in its, lower end the rivet-driving tool a, and the lower portion of the frame A'has set thereinthe clinching anvil I), also of VVGIlrkHOWH construction. The lower end of the plunger B is made frustoconical, as shown at c in Figs. 3 and 4, and

has fitted thereon the tubular nose-piece G, in such a manner as to be movable 'endwise thereon, it being prevented from axial movementthereon by means of the stop-pin d,

'ends to opposite sides of the collar D and extending downward therefrom substantially parallel with the curved sides of the nosepiece 0, and having their lower ends turned inward under the lower end of said nose, as shown at e e in Figs. 2, 4. and 6. The inner edge of each of the inwardly-turned lower portions 6' of the springs E E has formed in the center thereof anotch g to receive the shank of the rivet to be set, and the portions of said edge between said notch and the front and'rear edges of said spring, are rounded or beveled, so that when the two springs are in position and the plunger has been raised to the extreme of its upward movement, and the collar D has been arrested by contact with the frame A, and the pin (1, coming in contact with the upper end of the slot (1', has moved the nose 0' away from the horizontally-projecting portions of said spring, as shown in Figs; 1 and-2, a rivet h may be inserted between said inwardly-projecting portions of the springs with its head in contact with the nose 0 by placing said rivet with its head just above the'horizontal parts e of said springs, with its shank bearing against the beveled or rounded corners of. e and lessing said-rivet toward a position in axial line with the.;.setting-plunger, in doing which the parts e will separate to allow the shank of the rivet to pass between them and then close "upon said shank, so as to hold it firmly in said axial line with the in Fig. 2.

l he springs E E have formed therein the slots 6 into each of which projects the outer flat-sided end portion of a pin 1', fitted to a bearing in the nose-piece C and provided setting-plunger, as shown with a shoulder '11 to bear against the inner 2'5 with .thematerial in which it is to be set, the

' surface of said-spring upon opposite sides of said slot, as shown in Fig. 5. The inner ends of the pins 6 t are rounded, and they are 56 located that when the nose-piece is in its normal position, or so that the upper endof the slot d is in contact with the pin d, the pins ii will be in contact with or in close prpX- imity to the small end of the frusto-conical portion a of the plunger B, as shown in Fig.4.

The operation of our invention is as follows: The plunger B being at the extreme of its upward movement, as shown in Figs. 1 and 2, a rivet h is inserted between the in her surfaces ofthe horizontal portions e of the springs E, with its head between the upp'er surfaces of said horizontal portions e and the l we! endof the nose-piece C ,'with its center ih axial line with the setting-plunger Band the I setting-tool a, wherefitis firmly held by the ten sion of the springs E E. The work to be riveted beingplaced on the anvil b, the plunger B is moved downward, carrying with it the the collar D, and-the springs E nose-piece .0 only bearing upon the upper surface of therivet-he'ad. When the end of the rivet has come ingco'ntact with the material to be riveted, the movement'of the nose- I piece is temporarilyarrested,-while the plunger'B and the sett ing-tool a. continue their downward movement-s till the end of the tool a comes in; contact with the head of'the riveth, during which portion of. the downward movement of the plunger B its frusto-coni-.

cal surface 0, acting upon the inner ends of th e pins a z, forces them outward," and their shoulders vi 1'', acting upon the springs E E,"

- force their lower ends outward, so as to rematerial.-

move the parts at frombeneath the'headof the rivet and the lowerend of the nose. The

continued downwardl'inoveinent of thei'plifnger and the setting-'tpolforces the rivet through the materiatupon the anvilb and clinches the rivet upon theuiidrsideof the" When the rivet is set and the plunger-'13 is moved upward, the collar I), the

springs E, and the nose C-r move upward withsaid plunger with the parts in the positions, shown in Fig. 6 until the collar Dcomes incontact withthe lowerend of the gooseneck portion of the frame A, when the motion of said collar will be arrested, while the plunger 'continuesto move upward till the.

conical portionthereot is withdrawn from between thepins Ml sufficiently to allow the springs E E to assume the positions shownin Fig. 2, when another rivet may be inserted between the parts e'yof said springs, andthe operation may be repeated.

By the use of our invention rivets of different sizes and lengths and having flat or convex heads, as shown in Fig '8, may be set with equal facility and without change of setting-toolmand as the ordinary pocket heretofore used, and iuwhich the rivet was forccd downward between two spring-jaws which were forced open by contact with the rivet-head, is dispensed with, all danger of turning up a burr or fin on the edge of the head is obviated.

1. In a rivet-setting machine, the combination of a clinching anvil or die, a reciprocat ing plunger and a setting-tool carried there-' by, a nose-piece in the form of a sleeve having a bore of varying diameter mounted loosely on and movable endwise of said plunger and provided with the slot (1, a pin set in said plunger and projecting into said slot,

the collar D, mounted loosely upon said plunger above said nose-piece, two springs secured to and pendent from said collar and I having portions of. their lower ends turned inward beneath the lower end of said nosepiece, a spring interposed between said 001 lar and the nose-piece, and means havingprovision for withdrawing theinwardly-projccting portions of said spring from beneath the nose to permit the rivet 't-ofbe driven inde c pendently of any action of the rivet-head thereon. v V 2. In a rivet-setting machine, the combinationofa clinching anvil ordie, a reciprocating plungerand asetting-tool carried thereby, a tubular nosepiece surrounding the lower end of said plunger and tool and mov-v ably connected, to said plunger by a pin and slot, as set forth, a collar loosely mountedloe said plunger above said nos a spring inter- I posed between said collar and nose, two

' spring-arms secured to and depending from said collar, and provided at their lower ends withinwardly-projecting portions, each having formed in its center a notch to fit the 1 shank of the rivet'and having its corner on each side of said notch rounded or beveled, as set forth, and means having provision for withdrawing said, inward projections of said springs from beneath the nose-piece ind'e pendently. of any action of the rivet thereon, f

substantially as described.

3. 'lhecornbination of the anvil b, the plu'r'r ger B, provided with theinverted frusto-conie cal surface c,'the nose-piece O', provided with the slot d, the collar D, the springs E E, pro

vided with the slots c and the inwardlyturned portions 6, the push-pins M, the stoppin-d,-the spri-ngfiand the frame A,-al1 con-- structed, arranged, and adaptedto operate substantially as described.

In testimony whereof; we have signed our names tothis specification, in the presence of two subscribing witnesses, onthis 3d day of October, A. D. 1890.

WILLIAM C. BRAY.

EDWARD A. IIEMMENWAY.

Witnesses:

N. C. LOMBARD,

J W. McINnoR. 

